[one-users] WG: Problem with (live)migration

[Harder, Stefan]

Hi,

 

the only output I get from the log when I try to add “brandy” as node is:

 

Mon Mar  8 15:02:24 2010 [ReM][D]: HostAllocate method invoked

 

Deploying VMs on “vodka” works fine.

 

Best,

 

Stefan

 

 

Von: Jack Jill [mailto:jacknjill111 at gmail.com] 
Gesendet: Donnerstag, 25. Februar 2010 21:34
An: Harder, Stefan
Cc: users at lists.opennebula.org
Betreff: Re: [one-users] WG: Problem with (live)migration

 

 

On Thu, Feb 25, 2010 at 9:01 AM, Harder, Stefan
<Stefan.Harder at fokus.fraunhofer.de> wrote:

I have some additions to my last Email:

I have two machines "brandy" on which the cloud manager is installed and
"vodka" the cluster node. I created a vnet and then the ttylinux example and
it worked after some try and error.

For testing the migration functionality I wanted to add the brandy machine
also as cluster node with

oneadmin at brandy:/srv/cloud$ onehost create brandy im_kvm vmm_kvm tm_nfs

After a while onehost list shows:

 ID NAME                      RVM   TCPU   FCPU   ACPU    TMEM    FMEM STAT
  6 vodka                       1    400    398    398 8189944 7667316   on
  7 brandy                      0    400    400    400       0 7859184   on

Without the TMEM info. And migration to this host doesn’t work as mentioned
in my first email. If I delete the vodka machine from the hosts and want to
deploy a vm on brandy it doesn’t work, the vm stays in pend status. If I
deploy a vm on brandy without OpenNebula only with virsh it works. So I
think something went wrong creating the host brandy. But what?


Could you please post relevant (host brandy creation) log output from
oned.log?

Can you deploy VMs on host vodka?
 


Any guesses?

Best,

Stefan


> -----Ursprüngliche Nachricht-----
> Von: Harder, Stefan
> Gesendet: Donnerstag, 25. Februar 2010 10:40
> An: 'users at lists.opennebula.org'
> Betreff: Problem with (live)migration

>
> Hi,
>
> I get the following error when I try to migrate or livemigrate a
> running VM (in this case the ttylinux example) from one host to
> another. They have a shared FS which is under /srv/cloud.
>
> Thu Feb 25 10:34:56 2010 [DiM][D]: Live-migrating VM 50
> Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: LOG - 50 Command
> execution fail: virsh --connect qemu:///system migrate --live one-50
> qemu+ssh://brandy/session
>
> Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: LOG - 50 STDERR
> follows.
>
> Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: LOG - 50
> /usr/lib/ruby/1.8/open3.rb:67: warning: Insecure world writable dir
> /srv/cloud/one in PATH, mode 040777
>
> Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: LOG - 50
> Connecting to uri: qemu:///system
>
> Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: LOG - 50 error:
> operation failed: domain with the same name or UUID already exists as
> 'one-50'
>
> Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: LOG - 50 ExitCode:
> 1
>
> Thu Feb 25 10:34:57 2010 [VMM][D]: Message received: MIGRATE FAILURE 50
> -
>
>
> Does somebody know why the domain already eyists?
>
> Best Regards,
>
> Stefan


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-- 
Thanks,
Rosh
http://blogs.plexibus.com

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